Answer:
The volume of 25 g O2 at STP is ~18 L.
Explanation:
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Explanation:
When diluting a fruit juice, it is important to know the final volume so as not to over dilute the solution.
- The fruit juice can become too diluted if we don't know the final volume .
- Concentration refers to the amount of solute dissolved in a solvent.
- To achieve a desired amount of concentration during dilution, the volume of the target must be known.
- This will serve as a guide of the amount of solvent to add in order to take the solution to the desired volume.
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Dilution brainly.com/question/11493179
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Answer:
(4,20)
Explanation:
Oxygen di-fluoride or OF2 is a polar molecule, formed through the covalent bonding between one Oxygen and two Fluorine atoms.
Oxygen has atomic no. 8 and its electronic configuration is as below:
Oxygen has 4 electrons in the valence shell. It has the ability to share two electrons with other atoms through covalent bond and get stable.
The atomic number of Fluorine is 7, and its electronic configuration is as:
So, Fluorine atom has the capacity to accept 1 electron to form 1 covalent bond or in the formation of the F- ion.
The structure of OF2 is a bent structure with O atom sandwiched by two fluorine atoms like F-O-F. So there are two electrons on oxygen atom that are taking part in the formation of covalent bond with each Fluorine atom (Please dot structure in figure).
Now we can easily calculate no of bonding and non-bonding electrons.
- No. of bonding electrons = 4 (two from oxygen and two from fluorine atoms each)
- No. of non-bonding electrons= 20 (6+6 from two Fluorine atoms and 6 from Oxygen atom)
Hope it helps! :)
Explanation:
Carbon is a non-metal then carbon dioxide is a non-metal oxide. Non-metal oxides reacts with water to produce acids.
non-metal oxide + water ----> acid
carbon dioxide + water ----> carbonic acid
CO₂ + H₂O ---> H₂CO₃
Answer: H₂CO₃ (H2CO3)
Formula units??? im assuming moles
if its how many moles of mgcl2 in 29.2g of mgcl2
to find moles: Mass / RFM = 29.2/95 = 0.307mol
if its the number of atoms: Moles x Avogadro contestant
0.307 x 6.02x10+23
hope that helps